New details are emerging regarding Justin Bieber 's DUI and drag racing arrest . During a Thursday press conference, a representative for the Miami Beach Police Department confirmed that an officer witnessed two vehicles drag racing around 4:11 a.m. Khalil Sharief was pulled over first, followed by Bieber. The "Baby" singer, who was driving a rented yellow Lamborghini, willingly rolled down his window to speak with the officer. Bieber, who did not have a valid license, then acknowledged that he was using prescription anti-depressants and had also been smoking marijuana "all day."